Note: The recipe calls for 4 eggs that will need to be separated (2 egg yolks will go to make the dough, 2 egg yolks will go inside of the farmers cheese filling, and the 4 egg whites will make the meringue)
Preheat oven to 350F.
To make the crust:
Mix flour, salt, sugar, baking powder together.
Add cubed cold butter and work it into the flour mixture with your fingers. You should have a sandy mixture. (Note: you can use a food processor and pulse a few times to obtain the same texture)
Add egg yolks, sour cream, and vanilla and incorporate them into the dough. It will still be a little bit crumbly.
In a 9x13 baking pan, spread the dough equally with your fingers and press it down.
Bake at 350F for 20 minutes, then remove from the oven. The crust is only half baked at this point.
Make the filling:
Mix all the ingredients for the farmer's cheese filling, then spread the mixture over the crust.
Make the meringue:
Beat the four egg whites until stiff and add the sugar. Do not overmix. You still need to taste the crunchiness of the sugar in your meringue.
Bake:
Spread the egg whites over the other farmer cheese layer and bake the cake at 350F for another 20 minutes.
The meringue has to be golden brown, and the cake has to pass the toothpick test inside.
Let it cool and serve it cut in squares with a cup of Turkish coffee.
Notes
You can use ricotta cheese instead of Farmer's cheese.